3-Panel
Max 2700 mm · stacks one end
Smallest configuration — three panels fold together against one jamb. The right call for a standard backyard opening or a side return.
D-02/S38.BF
Bi-fold Door
Multi-leaf folding door that stacks open against the jamb. Opens up the entire wall — the indoor-outdoor moment that defines modern Australian living rooms.
Max overall width
6300mm
7-panel · stacks one end
U-value
3.6W/m²K
More frame than slider · 2.8 with Low-E DGU
Per panel max
1000×2700 mm
900 mm typical · taller on request
Lead time
8weeks
More fabrication time than other systems
Configurations
D-02
Common layouts shown · custom on request
Common layouts shown · custom on request
4-Panel
Max 3600 mm · 2+2 split or 4 one way
The most common bi-fold. Splits 2+2 from a centre meeting stile, or all 4 panels stack to one side. With a traffic door, you can pop out without unfolding the whole stack.
5–7 Panel
Max 6300 mm wide · stacks one end
Wide openings — entire-wall moments. 5, 6, or 7 panels fold to one jamb. Specify a traffic door so the family dog isn't trapped on the other side.
Specifications
SERIES 38
AS 2047 · AS 1288 · AS 2208
AS 2047 · AS 1288 · AS 2208
Frame system
Series 38 thermally broken aluminium
Frame depth
88 mm overall · 65 mm panel sightline
Thermal break
28 mm polyamide PA 6.6 with 25% glass fibre
Glazing
6 / 12 / 6 mm toughened DGU (Argon-filled) standard · safety-glazed throughout per AS 1288
Hardware
Centor / Cowdroy top-hung bi-fold track · multi-point shoot-bolt lock · stainless hinges
Max panel size
1000 × 2700 mm (W × H) — 900 mm typical width per panel
Max overall width
6300 mm (7-panel) · 3600 mm (4-panel typical)
U-value
3.6 W/m²K (DGU) · 2.8 W/m²K (Low-E DGU) · 2.0 W/m²K (triple-glazed)
Acoustic Rw
33 dB standard · up to 39 dB with laminated acoustic glass
Water tightness
450 Pa · AS 2047 Class 4
Wind class
Up to N3 (1106 Pa) · sheltered locations N4 on request
BAL rating
Capable to BAL-29 with standard build-up
Standards
AS 2047 · AS 1288 · AS 2208 · NCC compliant · AGGA member
Glass options
AS 1288 · AS 2208
Selected at quote stage
Selected at quote stage
Standard 6 mm Clear
Single glaze, baseline option for non-habitable rooms and sheds.
6/12/6 DGU · Argon-filled Default
Standard double glazing. U-value 3.4 W/m²K. Suits most Melbourne residential.
6/12/6 Low-E DGU Recommended
Low-emissivity coating for cold rooms and south-facing walls. U-value 2.6 W/m²K.
Triple Glazed 4/12/4/12/4 Premium
Three panes for the highest thermal and acoustic performance. U-value 1.8 W/m²K.
Acoustic Laminated
PVB interlayer reduces traffic and aircraft noise. AcRw +5–7 dB over standard DGU.
Toughened (Grade A)
Required in safety-glazing zones per AS 1288 — doors, low-sill openings, wet areas.
Frosted / Obscure
Acid-etched or sandblasted for bathrooms, ensuites, and street-facing openings.
Fluted / Textured
Reeded or fluted patterned glass for heritage and shopfront character.
Colours & finishes
DULUX POWDER COATINGS
Anodised on request
Anodised on request
Powder-coated to your spec. Dual-colour (inside / outside) available. Any Dulux Powder Coatings colour or anodised finish — by quote.
Hardware & extras
STAINLESS · MULTI-POINT
Standard inclusions + options
Standard inclusions + options
Track
Centor or Cowdroy top-hung — no floor track snag. Bottom guide for stability.
Hinges
Stainless butt hinges between panels · serviced from outside, no plate exposed inside
Traffic door
One panel can be a regular hinged door — no need to unfold the full stack for daily use
Locking
Multi-point shoot-bolt + keyed lock on traffic door · child-safety latches optional
Sill
Standard aluminium sill, flush sill (recessed into floor), or weather-protected outward-stack
Reveal
Standard aluminium reveal, timber-clad reveal, or plaster-stop reveal to suit wall build-up
Section detail
S38 · BI-FOLD MEETING STILE IN SECTION
Horizontal section · 1:5
Horizontal section · 1:5
- 1Series 38 thermal-break aluminium extrusion
- 228 mm polyamide thermal break
- 36 / 12 / 6 mm DGU · Argon-filled
- 4EPDM glazing gasket
- 5Centor folding hinge + pivot pin
Real installs
PROJECT LIBRARY
Photo gallery — coming
Photo gallery — coming
Project photos of this system going up shortly. In the meantime, see our selected works — five installs across Melbourne, the school in Sunshine North, and a riverbank apartment in Richmond.
Standards & compliance
SIGNED OFF
AGGA member · NCC-compliant
AGGA member · NCC-compliant
On file ·
AS 2047 · Windows in buildings◆
AS 1288 · Glass in buildings◆
AS 2208 · Safety glazing materials◆
AS 4055 · Wind loads◆
NCC 2022 Vol. 1 & 2◆
BAL-29 · BAL-FZ on application◆
AGGA member · WERS
Every opening leaves the workshop with the test certificate, the powder-coat batch number, and a 10-year warranty. We sign the shop drawing before fabrication — and again on the day of install.
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